Washington Island
Other power plant · Door County, Wisconsin
Nameplate capacity
5.0 MW
Rank in Wisconsin
#164
of 278 plants
In service since
1945
December 1945
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Washington Island El Coop, Inc
- County
- Door County
- Generating units
- 7
- Share of state capacity
- 0.03%
- Rank among other plants in Wisconsin
- #21 of 36
- EIA plant code
- 4148
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 7 | Petroleum Liquids | 1.6 MW | 1.6 MW | 1997 | Operating |
| 8 | Petroleum Liquids | 1.6 MW | 1.6 MW | 1997 | Operating |
| 6 | Petroleum Liquids | 0.9 MW | 0.9 MW | 1972 | Operating |
| 5 | Petroleum Liquids | 0.5 MW | 0.5 MW | 1968 | Operating |
| 4 | Petroleum Liquids | 0.2 MW | 0.2 MW | 1951 | Operating |
| 2 | Petroleum Liquids | 0.1 MW | 0.1 MW | 1952 | Operating |
| 3 | Petroleum Liquids | 0.1 MW | 0.1 MW | 1945 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Wisconsin
| Portage Industrial Battery | Battery storage | 5.0 MW |
| Rock LakeSolar WI, LLC | Solar | 5.0 MW |
| Kaukauna City Hydro | Hydro | 4.8 MW |
| Ridgeview | Other | 4.8 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 5.0 MW solar plant and a 5.0 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Wisconsin power plants · What Wisconsin actually generates